How to Repair a DEAD Computer



How to Repair a Computer

Two Methods:

Any abnormality in the integrated components of a computer can prove harmful to its performance, but some general computer issues can be addressed without seeking professional IT help. Among the most common problems you may encounter are issues with the computer freezing and appearances of the infamous "no boot" or "blue screen of death." To repair a computer, you'll need to troubleshoot the issue and determine if the fix is something you can perform yourself; for more complicated problems, however, consider seeking the help of a professional

Steps

Repair a Computer that Freezes or Runs Slowly

Computers may freeze on account of any hardware or software issue, so here you need to understand the exact reason behind it. Notice if the issue started when you connected any hardware peripherals, like a printer or scanner, then it might be due to a driver conflict. If the issue occurred after installing a new hard drive, then it might be due to insufficient power or too much heat. Follow the troubleshooting pattern below to repair your computer, if such problems occur.

  1. Give your computer a bit of rest.If you leave your computer on all the time, you can often fix a problem by turning off the computer, then unplugging it (or remove the battery, if it is a laptop), then holding down the power button for 30 seconds while computer remains unplugged (this will often cause a light, or lights, to flash), then reinserting the battery, plugging the computer back in and powering it on. By cutting off the power to the motherboard, it allows the hardware to reset and the memory to clear.
  2. Determine if your computer is overheating.You will need to take a look inside for this. Remember that any time you need to open up your computer cabinet, shut down your computer and unplug it. If you have long hair, tie it back. Take off any jewelry that might get in the way. Also avoid wearing any clothing that produces a lot of static, as a spark can damage hardware and cause intermittent, hard-to-troubleshoot problems.
  3. Run a diagnostic check.Many computers now come with built-in diagnostics which can tell you if you have certain issues. Two brands of computer that normally have diagnostic options are HP/Compaq and Dell. To access these diagnostic options:
    • Power down the computer, wait a few seconds then turn it back on.
    • HP - Immediately start pressing F2 on startup to access the diagnostic menu. Select Start Up Test, Quick, One Pass (if option is present) to begin the testing process.
    • Dell - Immediately start pressing F12 on startup to access the diagnostic menu. Use the arrow keys to select Diagnostics from the menu.
    • Write down any error codes and consult the internet, the computer manufacturer or a local technician for assistance.
  4. Open the cabinet of your computer and check the temperature of the metal chassis.If it’s hot, then there may be a heat related issue. For laptops, you generally do not want to try to open the case, but you can still vacuum the fan ports. Some computers just run hot, particularly laptops, but heat is never good for electronics. Gently examine the front and rear fans and blow out any dust. You can apply a clean cloth to dust out hidden particles. Remember: Your computer must be shut down while you're cleaning inside it.
    • If you have more than one hard drive in your computer, avoid installing them right next to each other in the chassis; this makes them more prone to heat failure. To install an extra hard drive in a wide slot, such as the slot that holds your CD-ROM or DVD-ROM drive, you can buy mounting brackets at a store that sells computer parts.
    • Even if your computer isn't having problems, it's a good idea to clean the fans regularly.
    • Before you close up the case, check all the cables and make sure everything is still plugged in. If you have to reset a video card or a stick of memory,avoid applying heavy pressure to the motherboardas this can damage it.
  5. Inspect your device drivers.Many times when doing a Windows Update, your system may download and install an incorrect driver, which may result in the computer freezing. You can check the status of drivers from Device Manager. Any devices with a yellow exclamation next to them are in an error state. Unplug any USB devices, if connected, and see if the error goes away. If so, that device is a problem. Power-on your computer and see if it works. If it does, good; otherwise you can restore your computer to an earlier configuration. System Restore will roll your system back to an earlier set of drivers.
  6. Try a System Restore.It can be accessed by pressing and holding the Windows Logo key and pressing R, and then typing "rstrui" in the Run dialog box. Using a restore point to restore your computer can remove software (like an app, driver, or update) that might be causing the problem.
    • Once started, System Restore can NOT be interrupted, so be patient.
    • Changes made to your PC by System Restore cannot be undone if you are running it in Safe Mode or the Windows Recovery Environment.
  7. Inspect your hard disk.Your hard disk is a storehouse of information, so when it gets used for a long duration it might get cluttered and patchy; this slows down the performance of your computer. Hence, use your Windows utility CHKDSK to scan and remove bad sectors on regular basis. It is the best preventive way of maintaining computer health.
  8. Install and run a good antivirus and anti-malware program. 
  9. Reinstall your operating system.If all else fails, reinstalling your operating system might help.
    • Back up your files before doing this step.

Fixing a Computer That Turns on but Does Not Boot the OS or Shows a Blue Screen of Death at Startup

  1. Check your power source.If your computer does not power on at all, the most likely culprits are either power supply (desktop only) or motherboard. Make sure the connectors are plugged in properly, and the switch on the back of the power supply is turned ON.
  2. Fixing when it does not boot or shows theblue screen.If your computer has power (you see lights, hear fans spinning), but nothing on the screen, or if the computer starts to boot up and then crashes with a 'blue screen', there are several possible issues.NOTE:Any hardware changes must be done while computer is completely powered down and unplugged/battery removed!!
    • Try Safe Mode - if your computer will boot into Safe Mode, it is a software related issue.
    • Test Screen - If you hear the computer running, but see nothing on the screen, try swapping monitors or plugging in an external monitor for laptops.
    • Test RAM - try carefully removing the ram and powering on. Most computers, when functioning properly, will give a long, repeating 'memory error' beep. Power off and replace the ram, one stick at a time, powering on when ram is properly seated.
    • Test Video Card - if your computer has a removable video card, try removing it and either replacing it or plugging your monitor into the built-in video port if available.
    • If none of these things work, you are likely looking at a failed hard drive, corrupted operating system or failed motherboard. It is best to seek professional services at this time.

Community Q&A

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  • Question
    How do you troubleshoot a computer?
    wikiHow Staff Editor
    Staff Answer
    Thanks!
  • Question
    Can a computer screen be fixed?
    wikiHow Staff Editor
    Staff Answer
    Yes, but it will depend upon the model how easy it is, how much it will cost. Laptops with easy to replace screens still exist, but are becoming less common. If you're trying to repair an ultrabook, tablet or a Macbook, it will probably be time consuming, require special tools and be easy to mess up, so you are probably better off taking it to a repair store. However, if you do it yourself you can save a lot of money. Look up a tutorial for replacing the screen on your model and give it a try if you think you can handle it.
    Thanks!
  • Question
    How do you fix a computer that won t boot up?
    wikiHow Staff Editor
    Staff Answer
    Thanks!
  • Question
    My PC doesn't start in Safe Mode or in Normal. What can I do?
    wikiHow Contributor
    Community Answer
    You'll have to reload Windows. Boot from USB or DVD drive (depending on your Windows installation), downloading from Microsoft and creating on another device, if necessary. When Windows installation begins, be sure to attempt a recovery install. It should find your previous Windows installation and try to use as much of it as possible.
    Thanks!
  • Question
    Is it possible to run too many scans on my laptop?
    wikiHow Contributor
    Community Answer
    Many scans running at once could really lag your computer, and some of the scans out there are just designed to get a virus into your computer, so choose the ones you run wisely.
    Thanks!
  • Question
    How can I repair my Dell laptop?
    wikiHow Contributor
    Community Answer
    That depends on what is wrong with it. Try Googling the issue first.
    Thanks!
  • Question
    How can I speed up the virus-cleaning process?
    wikiHow Contributor
    Community Answer
    Let it take its time. Use reliable programs like Malwarebytes, Avast, AVG, or Bitdefender. Your antivirus software might give you an option for a 'quick scan' or something similar, so you could choose that if you just want the most basic scan. But if you want a thorough cleanup, it will take a while, and you have to be patient.
    Thanks!
  • Question
    How do I recover data from a corrupt hard drive?
    wikiHow Contributor
    Community Answer
    If the partition table is corrupt, the hard drive cannot be accessed. If the master boot record is messed up, you may be able to access it through the "Open" or "Save as" dialog boxes in Notepad in the Windows Setup Command Prompt window. Type "notepad" to open Notepad and click on File > Open or File > Save As to recover files from that drive.
    Thanks!
  • Question
    My computer is on (I hear the CPU fan running). It's a Windows 7 HP. It says monitor is going to sleep every time I try to turn it on. It shows a yellow light in monitor and never starts up. What is wrong?
    Терентий Малышев
    Community Answer
    The monitor is faulty, or the computer's video system is broken. Try calling HP support and asking for help.
    Thanks!
  • Question
    Can I fix my computer on my own?
    wikiHow Contributor
    Community Answer
    Depending on what the problem is and how well you can teach yourself some repair skills, yes. However, some problems might be above your abilities, in which case you may need to take the computer into a shop to have it repaired.
    Thanks!
Unanswered Questions
  • How can I fix my laptop if it doesn't open it just went dead
  • One screw of the port of my CPU has broken, by which the monitor is connected. How can I repair that?
  • How do I repair my computer if the start-up repair can't fix the problems?
  • How can I fix my computer if it turns off two seconds after I turn it on and nothing shows up on the monitor?
  • All of my games freeze, then crash. I use an I7 6700HQ, GeForce GTX 1060 6GB. The way it crashes is it either just freezes, distorts the last frame, or shows a black screen with random colored blocks. No error message is shown. What could the problem be?
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Date: 02.12.2018, 03:41 / Views: 62344